import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import java.io.IOException;
import java.io.PrintWriter;

@WebServlet(urlPatterns = "/hello")
public class HelloServlet extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws IOException {
        //获取输出流对象
        PrintWriter printWriter = resp.getWriter();
        printWriter.println("Hello Servlet");
    }
}
